Brendan O'Brien

[Brendan O'Brien @BrendanOBrien05]

So proud. Congratulations @RileyyOBrienn

[Cincinnati Reds @Reds]

First MLB career strikeout in the books for @RileyyOBrienn! ✔️

[St. Louis Cardinals @Cardinals]

The National League leader in saves is headed to the All-Star Game ⭐️

Congrats to Riley O'Brien on being named to the National League All-Star Team!

[MLB @MLB]

Riley O'Brien continues his dominant start to his 2026 campaign!

He strikes out Yordan Alvarez on 100.5 MPH heat to secure the save 🔥

[Seattle Mariners @Mariners]

One step closer. #SeizeTheMoment

[Seattle Mariners @Mariners]

OCTOBER, HERE WE COME! #SeizeTheMoment

[St. Louis Cardinals @Cardinals]

The bullpen locked it down in LA yesterday!

5 scoreless innings ✅
5 strikeouts ✅
Riley O'Brien's first career save ✅

#ForTheLou x @NationalPro

[Kareem Haq @KareemSSN]

Riley O'Brien has allowed just one run over 10.1 MLB innings pitched in June

[Seattle Mariners @Mariners]

We are saddened to learn of the passing of Seattle trailblazer Johnny O’Brien.

Not only was he a @seattleumbb legend, but he was also a former King County commissioner, MLB player and worked in sales and promotions at the Kingdome. He was a champion of our community.

[The Seattle Times @seattletimes]

Johnny O’Brien, who helped put Seattle University and the city on the national sporting map in the early 1950s, died late Friday night at age 94. https://t.co/PYGDB05ZYV

[St. Louis Cardinals @Cardinals]

RHP Riley O'Brien has been recalled from Memphis (AAA).

RHP Ryan Fernandez has been optioned to Memphis.

[Kareem Haq @KareemSSN]

Riley O'Brien struck out the side with his sweeper today.

He’s now racked up 14 strikeouts in just 7 innings this season for Memphis.

[St. Louis Cardinals @Cardinals]

Roster Move: RHP Riley O'Brien has been recalled from Memphis (AAA).

RHP Shawn Armstrong has been designated for assignment.

[Kareem Haq @KareemSSN]

Here's a filthy 82.3 mph sweeper from Riley O'Brien with 22.3" of sweep to strike out Bryan Ramos

[MLB @MLB]

Blake Snell tosses the 18th no-hitter in @SFGiants history!

[Jacob @jacobledelman]

Riley O'Brien final spring stats:

10 IP
0.90 ERA
8 K, 2 BB
127 Stuff+
32.9% Whiff%

Sinker: 18.9% Whf% / 121 Stf+
Curve: 52.4% Whf% / 145 Stf+
Cutter: 33.3% Whf% / 104 Stf+

[Kareem Haq @KareemSSN]

Riley O’Brien had another dominant showing today. Updated spring stats:

4 IP
3 H
0 ER
0 BB
3 K

[Kareem Haq @KareemSSN]

Riley O’Brien nasty 98 mph sinker

[John Denton @JohnDenton555]

Word out of #STLCards camp is that the sweeper thrown by newcomer Riley O’Brien on Saturday had 21 inches of horizontal break, per a source. Another key element: He threw it at 84 mph just behind a fastball that was at 98 mph.

A closer look at O’Brien:

https://t.co/PsAZQ8rkcb

[Washington Football @UW_Football]

Same story, same mission.

Tomorrow.

#CFBPlayoff #PurpleReign

[Driveline Baseball @DrivelineBB]

Riley O'Brien showing us the easiest 99 mph we have ever seen 🥱🥱

[Washington Football @UW_Football]

2023 PAC-12 CHAMPIONS 🏆☔️

#USvsUS